As I understand the legal structure, each Regents University is a separate legal entity managed and controlled by the board of regents. The board of regents technically don't borrow money. The legal entity for each university is directly on the hook through bond financing.
Yes, the school bonds itself, but they have to get the Regents approval on anything even if it is self-funding. I would think with what the stock market has done, that maybe JP could find a couple larger donors to pony up some cash and name something after them to take care of things. Also, what is the total debt load that ISU athletic department carries?